A soft metal or nonmetal sleeve, designed to mate with a pin-rivet. it may include an external wrenching facility which breaks off at a perdetermined torque to form a head.
NSN 5975-01-196-6314
NSN 5855-00-237-4088
NSN 6650-01-610-6739
NSN 5985-01-371-7892
NSN 5945-01-389-7345
NSN 6105-00-727-1688
NSN 5998-01-072-3673
NSN 5915-00-276-8332
NSN 6220-01-173-7860
NSN 6650-01-399-0628
NSN 6110-01-633-9660
NSN 6240-00-428-4027